printer : Computer Hardware Buyers’ Glossary

A device that puts ink on paper. There are seven main types, with the most common at
the top:

ink-jet

laser

colour laser

dot matrix

Risograph

colour wax

daisy wheel

For details see entries under each type.
Pretty much, all have disappeared except ink-jets and lasers.

Printer Margins

Only the most expensive printers can do a full bleed — print right
to the edges of the paper. Most printers need side margins to allow a
place to pull the paper that will not be coated in wet ink. For example,
the HP (Hewlett Packard) LaserJet 1200 can print with a 0.35" margin
on the left, a 0.25" margin on the
right and 0.15" on the bottom. The Canon MP 210
inkjet gets even closer to the edges with 0.3"
margins on the sides and 0.1" margins on top
and bottom.